If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

The dirtier I get, the whiter I look. Who am I?

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

If 21x = 79x, what is the value of x?

Find the combined weight of the Cat, Dog and Rabbit in the given picture.

How is a fly different from a mosquito?

A beggar on the street can make one cigarette out of every 6 cigarette butts he finds. After one whole day of searching and checking public ashtrays the beggar finds a total of 72 cigarette butts. How many cigarettes can he make and smoke from the butts he found?

What is black when you buy it, red when you use it, and gray when you throw it away?

Paul's height is six feet, he's an assistant at a butcher's shop and wears size 9 shoes. What does he weigh?